Viessmann VITODENS 050-W Installation And Service Instructions Manual page 43

Further details regarding the individual steps
Note
Operate the appliance with uncontami-
nated combustion air to prevent operat-
ing faults and damage.
A
Commissioning, inspection, maintenance
(cont.)
1. Connect a flue gas analyser at flue
gas port A on the boiler flue con-
nection.
2. Start the boiler. Check for leaks.
Danger
Escaping gas leads to a risk
of explosion.
Check all gas equipment for
tightness.
43